CN107738552B - vehicle air conditioner condensation control method and control system - Google Patents
vehicle air conditioner condensation control method and control system Download PDFInfo
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- CN107738552B CN107738552B CN201711035469.9A CN201711035469A CN107738552B CN 107738552 B CN107738552 B CN 107738552B CN 201711035469 A CN201711035469 A CN 201711035469A CN 107738552 B CN107738552 B CN 107738552B
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- 230000005494 condensation Effects 0.000 title claims abstract description 92
- 238000009833 condensation Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000001816 cooling Methods 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 19
- 238000004378 air conditioning Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000004590 computer program Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- Air-Conditioning For Vehicles (AREA)
Abstract
the invention discloses a condensation control method and a condensation control system for a vehicle air conditioner, wherein the condensation control method for the vehicle air conditioner comprises the following steps: detecting a current ambient temperature of the vehicle; comparing the current ambient temperature with a temperature set value; when the current environment temperature is lower than the temperature set value, controlling a first condenser of the vehicle to operate independently; and when the current ambient temperature is greater than or equal to the temperature set value, controlling the first condenser and the second condenser to operate in series. According to the condensation control method of the vehicle air conditioner, the condenser is flexibly matched according to the use environment temperature of the vehicle air conditioner, the graded adjustment of the condenser is realized, and the problem that the condenser of the air conditioner is difficult to match in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a condensation control method and a condensation control system for a vehicle air conditioner.
Background
an air conditioning system of a vehicle is an important system for meeting the comfort of passengers, most air conditioners are used in summer, and the temperature difference in summer is large for different regions, such as tropical regions in the north and the south of China. Therefore, the temperature of the use environment of the air conditioner can reach the difference of 20-30 ℃, the difference of the use conditions of the air conditioner is large, and the matching of the condenser of the air conditioner is difficult. At this time, if the condenser of the air conditioning system is matched to be large, long-term waste of system resources may be caused, and meanwhile, the large condenser is difficult to arrange enough space on the existing compact vehicle for installation; and if the matching of the condenser of the air conditioning system is small, the air conditioner has the condition of insufficient refrigeration in the hottest period, and the comfort of passengers is influenced.
disclosure of Invention
The invention provides a condensation control method and a condensation control system of a vehicle air conditioner.
the invention provides a condensation control method of a vehicle air conditioner, which comprises the following steps: detecting a current ambient temperature of the vehicle; comparing the current ambient temperature with a temperature set value; when the current environment temperature is lower than the temperature set value, controlling a first condenser of the vehicle to operate independently; and when the current ambient temperature is greater than or equal to the temperature set value, controlling the first condenser and the second condenser to operate in series.
Preferably, after controlling the first condenser of the vehicle to operate, the method further includes: detecting a current pressure value of a condensation pipeline of the vehicle; comparing the current pressure value with a third pressure set value; and if the current pressure value is greater than or equal to a third pressure set value, controlling the first condenser and the second condenser to operate in series.
preferably, after controlling the first condenser and the second condenser to operate in series, the method further comprises: detecting a current pressure value of a condensation pipeline of the vehicle; comparing the current pressure value with a first pressure set value; and if the current pressure value is smaller than a first pressure set value, controlling the first condenser to operate independently.
Preferably, after the first condenser is operated, or after the first condenser and the second condenser are operated in series, the method further comprises: judging whether the first condenser is cooled or not or whether the first condenser and the second condenser are cooled or not according to the current pressure value; if so, cooling the first condenser, or cooling the first condenser and the second condenser.
Preferably, the cooling the first condenser, or the cooling the first condenser and the second condenser includes: controlling the fan of the first condenser to operate, or controlling the fan of the first condenser and the fan of the second condenser to operate.
Preferably, the cooling the first condenser and the second condenser comprises: when the current pressure value is greater than or equal to a fourth pressure set value and less than a fifth pressure set value, controlling a fan of the first condenser to operate; when the current pressure value is greater than or equal to a fifth pressure set value, controlling fans of the first condenser and the second condenser to operate; when the current pressure value is smaller than or equal to a first pressure set value, a bypass connected with the second condenser in parallel is opened, and the second condenser, a fan of the second condenser and a fan of the first condenser are controlled to stop running; wherein the first pressure set value is less than the fourth pressure set value.
Preferably, said cooling said first condenser comprises: when the current pressure value is greater than or equal to a second pressure set value and less than a third pressure set value, controlling a fan of the first condenser to operate; when the pressure value of the current condensation pipeline is larger than a third pressure set value, closing a bypass connected with the second condenser in parallel, and controlling the second condenser to operate; wherein the first pressure set value is less than the second pressure set value and less than the third pressure set value and less than the fourth pressure set value and less than the fifth pressure set value.
accordingly, the present invention also provides a vehicle air conditioner condensation control system, comprising: temperature detection means for detecting a current ambient temperature of the vehicle; a first condenser and a second condenser installed in series on a condensation duct of the vehicle; a condenser pipe parallel bypass connected with two ends of the second condenser; the second switch is arranged on the parallel bypass of the condenser pipe; a first switch arranged between the second condenser and the common end of the parallel bypass of the second condenser and the condenser pipe and the second condenser; and a processor configured to: comparing the current ambient temperature detected by the temperature detection device with a temperature set value; when the current environment temperature is lower than the temperature set value, controlling the first switch to be switched off and controlling the second switch to be switched on so as to enable the first condenser to operate independently; and when the current ambient temperature is greater than or equal to the temperature set value, controlling the first switch to be closed and controlling the second switch to be opened so as to enable the first condenser and the second condenser to operate in series.
Preferably, the system further comprises: the pressure detection device is used for detecting the current pressure value of a condensation pipeline of the vehicle; wherein the processor is further configured to: comparing the current pressure value detected by the pressure detecting means with a third pressure set value after controlling a first condenser of the vehicle to operate alone; and if the current pressure value is larger than or equal to a third pressure set value, controlling the first switch to be closed and controlling the second switch to be opened, so that the first condenser and the second condenser are operated in series.
Preferably, the system further comprises: the pressure detection device is used for detecting the current pressure value of a condensation pipeline of the vehicle; wherein the processor is further configured to: after the first condenser and the second condenser are controlled to operate in series, comparing the current pressure value detected by the pressure detection device with a first pressure set value; and if the current pressure value is smaller than a first pressure set value, controlling the first switch to be switched off and controlling the second switch to be switched on so as to enable the first condenser to operate independently.
preferably, the system further comprises: a first fan coupled to the first condenser for cooling the first condenser; a second fan coupled to the second condenser for cooling the second condenser; a third switch connecting the first fan and a power source; and a fourth switch connecting the second fan and a power source;
Wherein the processor is further configured to: after the first condenser operates independently or after the first condenser and the second condenser operate in series, judging whether to cool the first condenser or not or whether to cool the first condenser and the second condenser or not according to the current pressure value; if so, controlling the third switch to be closed and the fourth switch to be opened to enable the first fan to run, or controlling the third switch and the fourth switch to be closed to enable the first fan and the second fan to run.
Preferably, the processor determines whether to cool the first condenser or cool the first condenser and the second condenser according to the current pressure value, including: when the current pressure value is greater than or equal to a fourth pressure set value and less than a fifth pressure set value, controlling the third switch to be closed and the fourth switch to be opened; when the current pressure value is greater than or equal to a fifth pressure set value, controlling the third switch and the fourth switch to be closed; when the current pressure value is smaller than or equal to a first pressure set value, the first switch, the third switch and the fourth switch are controlled to be turned off, and the second switch is controlled to be turned on; wherein the first pressure set value is less than the fourth pressure set value.
Preferably, the processor determines whether to cool the first condenser or cool the first condenser and the second condenser according to the current pressure value, and further includes: when the current pressure value is greater than or equal to a second pressure set value and less than a third pressure set value, controlling the third switch to be closed; when the pressure value of the current condensation pipeline is larger than a third pressure set value, controlling the first switch to be closed and controlling the second switch to be opened; wherein the first pressure set value is less than the second pressure set value and less than the third pressure set value and less than the fourth pressure set value and less than the fifth pressure set value.
according to the condensation control method and the control system of the vehicle air conditioner, the corresponding condenser operation mode is started according to the use environment temperature of the vehicle air conditioner, namely, the corresponding condenser is matched according to the operation requirement, so that the waste of system resources and energy is avoided.
Drawings
in order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a flow chart of a vehicle air conditioner condensation control method according to one embodiment of the present invention;
FIG. 2 is a flowchart of a vehicle air conditioner condensation control method according to another embodiment of the present invention;
FIG. 3 is a flowchart of a vehicle air conditioner condensation control method according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a vehicle air conditioner condensation control system according to one embodiment of the present invention; and the number of the first and second groups,
FIG. 5 is a schematic structural diagram of a vehicle air conditioner condensation control system according to another embodiment of the present invention;
Fig. 6 is a flowchart of an operation of the air conditioner compressor.
Reference numerals:
10. the condenser pipes are connected in parallel with a bypass; condensation line 20.
Detailed Description
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parameters or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
the invention provides a condensation control method and system for a vehicle air conditioner, which solve the technical problem that a condenser and the air conditioner are difficult to match in the prior art.
In order to better understand the technical solution and the technical effect of the present invention, the following detailed description will be made on specific embodiments with reference to a flow diagram.
Fig. 1 is a flowchart of a condensation control method of a vehicle air conditioner according to an embodiment of the present invention. As shown in fig. 1, which is a flowchart of a condensation control method of a vehicle air conditioner according to an embodiment of the present invention, the method may include the steps of: in step S100, detecting a current ambient temperature of the vehicle; in step S110, comparing the current ambient temperature with a temperature set value, that is, determining whether the current ambient temperature is greater than or equal to the temperature set value; when the current ambient temperature is less than the temperature set value, controlling a first condenser of the vehicle to operate alone in step S130; and when the current ambient temperature is greater than or equal to the temperature set value, controlling the first condenser and the second condenser to operate in series in step S120.
In the scheme, the current environment temperature of the vehicle is detected to determine the use environment temperature of the vehicle air conditioner, the starting mode of the condenser is determined according to the current environment temperature, specifically, the current environment temperature is compared with a temperature set value, when the current environment temperature exceeds the temperature set value, the current environment temperature is indicated to exceed a preset value, and at the moment, the first condenser and the second condenser are controlled to operate in series to meet the high matching requirement of the air conditioner on a condensing system under a higher load at a higher temperature; and when the ambient temperature is less than the temperature set value, it can be understood that the vehicle air conditioner is in a low ambient temperature, the air conditioner is in a low-load operation state, the matching requirement of the air conditioner on the condensing system is low, and at the moment, the first condenser is controlled to operate independently, so that the requirement of the condensing system can be met.
the temperature set value in the above scheme can be, for example, 30 ℃ to 40 ℃, and can be, for example, 35 ℃, and can also be set according to the requirements of users or the regional differences of vehicles used by the users, or according to the industrial design requirements, that is, the performance parameters of different condensers.
according to the condensation control method of the vehicle air conditioner, the operation mode of the condenser is set according to the ambient temperature, the corresponding condenser or condenser group is operated according to the requirement, for example, two smaller condensers can be adopted, one condenser is independently operated in a relatively low-temperature environment, the two condensers are simultaneously operated at a relatively high ambient temperature, and the corresponding condensers are matched according to different ambient temperatures, so that the problem that the condensers in the prior art are difficult to match is solved; the method has the characteristics of high efficiency and flexibility in control mode, and effectively avoids the waste of system resources.
Fig. 2 is a flowchart of a condensation control method of a vehicle air conditioner according to another embodiment of the present invention. The condensation control method of the vehicle air conditioner according to one embodiment of the present invention as shown in fig. 2 further includes, after step S130: in step S131, detecting a current pressure value of a condensation line of the vehicle; in step S132, comparing the current pressure value with a third pressure set value, that is, determining whether the current pressure value is greater than or equal to the third pressure set value; and if the current pressure value is greater than or equal to the third pressure set value, the step S120 is performed, that is, the first condenser and the second condenser are controlled to operate in series.
as another example, after step S120, the method further comprises: step S121, detecting the current pressure value of a condensation pipeline of the vehicle; step S123, comparing the current pressure value with a first pressure set value, namely judging whether the current pressure value is smaller than the first pressure set value; if yes, the process goes to step S130, and the first condenser is controlled to operate alone.
In the above solution, one parameter determining the condensation effect of the condensation system is a pressure value of a condensation pipeline of the condensation system, and the method for controlling condensation of a vehicle air conditioner according to an embodiment of the present invention further includes monitoring the operation effect of the condenser according to the pressure value of the condensation pipeline, that is, detecting a current pressure value of the condensation pipeline of the vehicle, and comparing the detected current pressure value with a pressure set value, that is, a first pressure set value or a third pressure set value, to adjust the operation mode of the condenser; under the condition of first condenser alone operation, when judging that the current pressure value that detects is more than or equal to the third pressure value, can understand that current pressure value exceeds preset normal value, at this moment, control second condenser concurrent operation, first condenser and second condenser series operation condense the pipeline rapidly, reduce pipeline pressure.
it is to be understood that, in the above-mentioned solution, as another example, in the case where the first condenser and the second condenser are operated in series, when the detected current pressure value is smaller than the first pressure set value, and the current pressure value of the pipeline is considered to be lower than the preset normal value, it is not necessary to operate the first condenser and the second condenser at the same time, and the second condenser is controlled to be turned off, so that the first condenser is operated alone.
in the above scheme, the operation mode of the condenser is controlled according to the comparison result of the current pressure value of the condensation pipeline and the pressure set value, namely the first pressure set value or the third pressure set value, so that the operation of the condensation system can be adjusted according to the operation effect of the condensation system, the closed-loop control of the operation of the condensation system is realized, the operation of the condensation system is automatically controlled and adjusted, the control mode is flexible and reasonable, the adaptability of the vehicle air conditioning system in different temperature difference environments in summer is improved, and the competitiveness of the air conditioning system is improved.
Fig. 3 is a flowchart of a condensation control method of a vehicle air conditioner according to another embodiment of the present invention. In a condensation control method of a vehicle air conditioner according to another embodiment of the present invention shown in fig. 3, after the first condenser is operated, or after the first condenser and the second condenser are operated in series, the method further includes: judging whether the first condenser is cooled or not or whether the first condenser and the second condenser are cooled or not according to the current pressure value; if so, cooling the first condenser, or cooling the first condenser and the second condenser.
The condensation system works in a high-temperature environment, the cooling of the condensation system is a necessary measure for ensuring the normal work of the condensation system, and under the condition that the cooling of the condensation system is insufficient through a natural cooling mode of air heat exchange, for example, the cooling of a first condenser or a first condenser and a second condenser is necessary through arranging cooling facilities such as a fan, and the like, otherwise, the condensation effect of the condensation system is influenced, and the pressure of a condensation pipeline is possibly increased, so that the pressure value of the condensation pipeline is an important parameter for judging whether the condensation system is cooled; in the above scheme, through detecting the current pressure value of condensation pipeline, judge whether need to cool down condensing system and can guarantee that condensing system work is in normal temperature range, guarantee system normal operating, improve system's reliability.
as an example, the cooling the first condenser, or the cooling the first condenser and the second condenser includes: and controlling the fan of the first condenser to operate, and controlling the fan of the first condenser and the fan of the second condenser to operate.
As a further example, the cooling the first condenser and the second condenser comprises: in step S122, determining whether the current pressure value is smaller than a third pressure set value, if yes, going to step S123, and continuing to determine whether the current pressure value is smaller than a critical value capable of closing the second condenser, that is, whether the current pressure value is smaller than the first pressure set value, if yes, going to step S130, and controlling the first condenser to operate alone; if the current pressure value determined in step S122 is not less than the third pressure set value, step S124 is performed to determine whether the current pressure value is greater than or equal to the fourth pressure set value and less than the fifth pressure set value, and if so, in step S125, the fan of the first condenser is controlled to operate; if it is determined in step S124 that the current pressure value is not less than the fourth pressure setting value and less than the fifth pressure setting value, the process proceeds to step S126, where it is determined whether the current pressure value is greater than or equal to the fifth pressure setting value, and if so, the fans of the first condenser and the second condenser are controlled to operate in step S127.
as an example, when the current pressure value is less than or equal to a first pressure set value, in step S130, the first condenser may be controlled to operate by, for example, opening a bypass connected in parallel with the second condenser, and controlling the second condenser, a fan of the second condenser, and a fan of the first condenser to stop operating; wherein the first pressure set value is less than the fourth pressure set value.
In the above scheme, under the condition that the first condenser and the second condenser are operated in series, the fan of the first condenser and the fan of the second condenser are controlled according to different intervals where the current pressure values of the condensation pipelines are located; when the current pressure value is greater than or equal to the fifth pressure set value, the pressure in the condensation pipeline is higher, the condensation demand on the condensation system is higher, the condensation system needs to be rapidly cooled, and only the fan of the first condenser and the fan of the second condenser are controlled to operate simultaneously, so that the effect of rapidly cooling the condensation system is achieved; and the fourth pressure set value is a working configuration value for judging the fan of the second condenser, and when the current pressure value of the condensation pipeline is greater than or equal to the fourth pressure set value and smaller than the fifth pressure set value, the fan of the first condenser is controlled to operate independently, and the fan of the second condenser is controlled to be closed.
As another example, in step S130, controlling the first condenser to operate alone, and determining whether to cool down the first condenser includes: in step S132, it is determined whether the current pressure value is greater than or equal to the third pressure set value, if yes, the first condenser and the second condenser are controlled to operate in series in step S120, if no, it is determined in step S133 whether the current pressure value is greater than or equal to the second pressure set value and less than the third pressure set value, if yes, the fan of the first condenser is controlled to operate in step S134.
When the current pressure value of the condensing pipeline is greater than or equal to the third pressure set value, in step S120, controlling the first condenser and the second condenser to operate in series, for example, closing a bypass connected in parallel with the second condenser, and controlling the second condenser to operate; wherein the first pressure set value is less than the second pressure set value and less than the third pressure set value and less than the fourth pressure set value and less than the fifth pressure set value.
In the above scheme, under the condition that the first condenser operates alone, when the current pressure value is greater than or equal to the second pressure set value and less than the third pressure set value, the fan of the first condenser is controlled to operate so as to cool the condenser; when the current pressure value of the condensing pipeline is greater than the third pressure set value, the condensing requirement on the condensing system is increased, the bypass connected with the second condenser in parallel is controlled to be closed, the second condenser and the first condenser are connected in series to operate, and the processing capacity of the condensing system is increased so as to meet the matching requirement of the air conditioner on the condensing system at the present stage.
According to the condensation control method of the vehicle air conditioner, the condenser is matched according to the using environment temperature of the vehicle air conditioner, the graded matching of the condenser along with the environment temperature is realized, the condenser is matched according to the refrigeration requirement, the refrigeration requirement is met at a higher temperature, the refrigeration requirement is met at a relatively low temperature, the system configuration and the energy consumption are reduced, and the control mode is flexible and reasonable.
Correspondingly, the invention further provides a vehicle air conditioner condensation control system corresponding to the method. Embodiments of a condensation control system for a vehicle air conditioner will be described with reference to the accompanying drawings.
Fig. 4 is a schematic structural diagram of a vehicle air conditioner condensation control system according to an embodiment of the present invention, and the vehicle air conditioner condensation control system according to an embodiment of the present invention shown in fig. 4 includes: temperature detection means for detecting a current ambient temperature of the vehicle; a first condenser and a second condenser installed in series on a condensing line 20 of the vehicle; a condenser pipe parallel bypass 10, the condenser pipe parallel bypass 10 connecting both ends of the second condenser; a second switch disposed on the condenser pipe parallel bypass 10; a first switch arranged between the second condenser and the common end of the condenser pipe parallel bypass 10 and the second condenser; and a processor configured to: comparing the current ambient temperature detected by the temperature detection device with a temperature set value; when the current environment temperature is lower than the temperature set value, controlling the first switch to be switched off and controlling the second switch to be switched on so as to enable the first condenser to operate independently; and when the current ambient temperature is greater than or equal to the temperature set value, controlling the first switch to be closed and controlling the second switch to be opened so as to enable the first condenser and the second condenser to operate in series.
In the scheme, two condensers and corresponding bypass structures are arranged to determine whether the two condensers need to be operated in series or close the parallel bypasses of the condenser pipes according to the current ambient temperature detected by the temperature detection device, and the second condenser is cut off from the system and only the first condenser is operated. Thereby form and be applicable to the two condenser air conditioner control systems of multistage temperature environment vehicle, solved the problem of single big condenser occupation space through setting up of two condensers, can use two less spatial arrangement condensers, when the condensation matches the requirement and is lower, can only open a condenser, avoid the waste of system resource.
Fig. 5 is a schematic structural diagram of a condensation control system of a vehicle air conditioner according to another embodiment of the present invention. A vehicle air conditioner condensation control system according to an embodiment of the present invention as shown in fig. 5, further includes: the pressure detection device is used for detecting the current pressure value of a condensation pipeline of the vehicle; wherein the processor is further configured to: comparing the current pressure value detected by the pressure detecting means with a third pressure set value after controlling a first condenser of the vehicle to operate alone; and if the current pressure value is larger than or equal to a third pressure set value, controlling the first switch to be closed and controlling the second switch to be opened, so that the first condenser and the second condenser are operated in series.
The system disclosed by the scheme is provided with a pressure detection device for detecting the current pressure value of the condensation pipeline of the vehicle; as another example, wherein the processor is further configured to: after the first condenser and the second condenser are controlled to operate in series, comparing the current pressure value detected by the pressure detection device with a first pressure set value; and if the current pressure value is smaller than a first pressure set value, controlling the first switch to be switched off and controlling the second switch to be switched on so as to enable the first condenser to operate independently.
In the scheme, after the condensing system operates, the operation of the condensing system is adjusted according to the current pressure value of the condensing pipeline detected by the pressure detection device, the second condenser is closed when the system pressure is reduced after the two condensers operate simultaneously, or the first switch is closed and the second switch is opened when the system pressure is increased and the second condenser needs to be opened after the first condenser operates alone, so that the second condenser enters a working state; therefore, the control system adjusts the operation of the condensing system according to the working condition requirement. For a description of other beneficial effects of the vehicle air conditioner condensation control system according to the embodiment of the present invention, reference is made to the above description of the vehicle air conditioner condensation control method, which is not repeated herein.
a vehicle air conditioner condensation control system according to another embodiment of the present invention as shown in fig. 5, further comprising: a first fan coupled to the first condenser for cooling the first condenser; a second fan coupled to the second condenser for cooling the second condenser; a third switch connecting the first fan and a power source; and a fourth switch connecting the second fan and a power source; wherein the processor is further configured to: after the first condenser operates independently or after the first condenser and the second condenser operate in series, judging whether to cool the first condenser or not or whether to cool the first condenser and the second condenser or not according to the current pressure value; if so, controlling the third switch to be closed and the fourth switch to be opened to enable the first fan to run, or controlling the third switch and the fourth switch to be closed to enable the first fan and the second fan to run.
As an example, the determining, by the processor, whether to cool down the first condenser or cool down the first condenser and the second condenser according to the current pressure value includes: when the current pressure value is greater than or equal to a fourth pressure set value and less than a fifth pressure set value, controlling the third switch to be closed and the fourth switch to be opened; when the current pressure value is greater than or equal to a fifth pressure set value, controlling the third switch and the fourth switch to be closed; when the current pressure value is smaller than or equal to a first pressure set value, the first switch, the third switch and the fourth switch are controlled to be turned off, and the second switch is controlled to be turned on; wherein the first pressure set value is less than the fourth pressure set value.
The first switch and/or the second switch in the above scheme may be, for example, a solenoid valve, and the temperature detection device may be, for example, a temperature sensor.
as another example, the processor determines whether to cool the first condenser or cool the first condenser and the second condenser according to the current pressure value, and further includes: when the current pressure value is greater than or equal to a second pressure set value and less than a third pressure set value, controlling the third switch to be closed; when the pressure value of the current condensation pipeline is larger than a third pressure set value, controlling the first switch to be closed and controlling the second switch to be opened; wherein the first pressure set value is less than the second pressure set value and less than the third pressure set value and less than the fourth pressure set value and less than the fifth pressure set value.
Fig. 6 is a flowchart of an operation of the air conditioner compressor. After the air conditioner is started, obtaining a set temperature value F2, wherein the set temperature value F2 can be set by a user, for example, the temperature detection device can be a temperature sensor for detecting an ambient temperature F1, wherein the value of F1 is smaller than F2, and the difference between F1 and F2 is set to 1-2 ℃); when the temperature of the temperature sensor of the air conditioner compressor is higher than the set temperature F2, the compressor starts to work, and after the temperature of the temperature sensor is reduced to be lower than F1, the compressor stops working, and the compressor works in a circulating mode along with the change of the temperature value.
According to the vehicle air conditioner condensation control system in the embodiment of the invention, through controlling the double condensers and the bypass structures thereof and the fans corresponding to the double condensers, the air conditioner can reasonably utilize the resources of the condensation system under different temperature differences, reasonably utilize energy sources and reduce the energy consumption of the system.
For the description of the vehicle air conditioner condensation control system according to the embodiment of the present invention, reference is made to the related description of the vehicle air conditioner condensation control method, which is not repeated herein.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim.
Those skilled in the art will appreciate that the modules in the apparatus of an embodiment may be adaptively changed and disposed in one or more devices different from that of the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
furthermore, those skilled in the art will appreciate that although embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
the various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions in a system for multi-operator remote manipulation of a single operator according to embodiments of the present invention. The present invention may also be embodied as apparatus or system programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from a website on the internet, provided on a carrier signal, or provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps or the like not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several systems, several of these systems may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (11)
1. a condensation control method for a vehicle air conditioner, characterized by comprising:
detecting a current ambient temperature of the vehicle;
comparing the current ambient temperature with a temperature set value;
When the current environment temperature is lower than the temperature set value, controlling a first condenser of the vehicle to operate independently; and the number of the first and second groups,
when the current environment temperature is greater than or equal to the temperature set value, controlling the first condenser and the second condenser to operate in series;
After controlling the first condenser of the vehicle to operate, the method further includes:
detecting a current pressure value of a condensation pipeline of the vehicle;
Comparing the current pressure value with a third pressure set value;
And if the current pressure value is greater than or equal to a third pressure set value, controlling the first condenser and the second condenser to operate in series.
2. The method of claim 1, wherein after controlling the first condenser and the second condenser to operate in series, the method further comprises:
Detecting a current pressure value of a condensation pipeline of the vehicle;
comparing the current pressure value with a first pressure set value;
And if the current pressure value is smaller than a first pressure set value, controlling the first condenser to operate independently.
3. the method of claim 1 or 2, wherein after the first condenser is operated, or after the first condenser and the second condenser are operated in series, the method further comprises:
judging whether the first condenser is cooled or not or whether the first condenser and the second condenser are cooled or not according to the current pressure value;
If so, cooling the first condenser, or cooling the first condenser and the second condenser.
4. The method of claim 3, wherein cooling the first condenser, or cooling the first condenser and the second condenser comprises:
controlling the fan of the first condenser to operate, or controlling the fan of the first condenser and the fan of the second condenser to operate.
5. The method of claim 4, wherein said de-superheating said first condenser and said second condenser comprises:
When the current pressure value is greater than or equal to a fourth pressure set value and less than a fifth pressure set value, controlling a fan of the first condenser to operate;
When the current pressure value is greater than or equal to a fifth pressure set value, controlling fans of the first condenser and the second condenser to operate; and the number of the first and second groups,
When the current pressure value is smaller than or equal to a first pressure set value, a bypass connected with the second condenser in parallel is started, and the second condenser, a fan of the second condenser and a fan of the first condenser are controlled to stop running;
wherein the first pressure set value is less than the fourth pressure set value.
6. the method of claim 5, wherein said cooling said first condenser comprises:
when the current pressure value is greater than or equal to a second pressure set value and less than a third pressure set value, controlling a fan of the first condenser to operate; and
When the pressure value of the current condensation pipeline is larger than or equal to a third pressure set value, closing a bypass connected with the second condenser in parallel, and controlling the second condenser to operate;
Wherein the first pressure set value is less than the second pressure set value and less than the third pressure set value and less than the fourth pressure set value and less than the fifth pressure set value.
7. A vehicular air conditioning condensation control system, characterized in that the system comprises:
Temperature detection means for detecting a current ambient temperature of the vehicle;
A first condenser and a second condenser installed in series on a condensation duct of the vehicle;
A condenser pipe parallel bypass connected with two ends of the second condenser;
the second switch is arranged on the parallel bypass of the condenser pipe;
A first switch arranged between the second condenser and the common end of the parallel bypass of the second condenser and the condenser pipe and the second condenser; and the number of the first and second groups,
A processor configured to:
comparing the current ambient temperature detected by the temperature detection device with a temperature set value;
When the current environment temperature is lower than the temperature set value, controlling the first switch to be switched off and controlling the second switch to be switched on so as to enable the first condenser to operate independently; when the current environment temperature is greater than or equal to the temperature set value, controlling the first switch to be closed and controlling the second switch to be opened so as to enable the first condenser and the second condenser to operate in series;
the system further comprises:
the pressure detection device is used for detecting the current pressure value of a condensation pipeline of the vehicle;
wherein the processor is further configured to:
Comparing the current pressure value detected by the pressure detecting means with a third pressure set value after controlling a first condenser of the vehicle to operate alone; and the number of the first and second groups,
and if the current pressure value is greater than or equal to a third pressure set value, controlling the first switch to be closed and controlling the second switch to be opened, so that the first condenser and the second condenser are operated in series.
8. the system of claim 7, further comprising:
The pressure detection device is used for detecting the current pressure value of a condensation pipeline of the vehicle;
wherein the processor is further configured to:
after the first condenser and the second condenser are controlled to operate in series, comparing the current pressure value detected by the pressure detection device with a first pressure set value; and if the current pressure value is smaller than a first pressure set value, controlling the first switch to be switched off and controlling the second switch to be switched on so as to enable the first condenser to operate independently.
9. the system according to claim 7 or 8, characterized in that the system further comprises:
A first fan coupled to the first condenser for cooling the first condenser;
a second fan coupled to the second condenser for cooling the second condenser;
A third switch connecting the first fan and a power source; and the number of the first and second groups,
A fourth switch that connects the second fan and a power source;
Wherein the processor is further configured to:
after the first condenser operates independently or after the first condenser and the second condenser operate in series, judging whether to cool the first condenser or not or whether to cool the first condenser and the second condenser or not according to the current pressure value;
if so, controlling the third switch to be closed and the fourth switch to be opened to enable the first fan to run, or controlling the third switch and the fourth switch to be closed to enable the first fan and the second fan to run.
10. the system of claim 9, wherein the processor determining whether to cool down the first condenser or cool down the first condenser and the second condenser according to the current pressure value comprises:
when the current pressure value is greater than or equal to a fourth pressure set value and less than a fifth pressure set value, controlling the third switch to be closed and the fourth switch to be opened;
When the current pressure value is greater than or equal to a fifth pressure set value, controlling the third switch and the fourth switch to be closed; and the number of the first and second groups,
when the current pressure value is smaller than or equal to a first pressure set value, the first switch, the third switch and the fourth switch are controlled to be turned off, and the second switch is controlled to be turned on;
wherein the first pressure set value is less than the fourth pressure set value.
11. The system of claim 10, wherein the processor determines whether to cool down the first condenser or cool down the first condenser and the second condenser according to the current pressure value, further comprising:
when the current pressure value is greater than or equal to a second pressure set value and less than a third pressure set value, controlling the third switch to be closed; and
When the pressure value of the current condensation pipeline is larger than a third pressure set value, controlling the first switch to be closed and controlling the second switch to be opened;
Wherein the first pressure set value is less than the second pressure set value and less than the third pressure set value and less than the fourth pressure set value and less than the fifth pressure set value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711035469.9A CN107738552B (en) | 2017-10-30 | 2017-10-30 | vehicle air conditioner condensation control method and control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711035469.9A CN107738552B (en) | 2017-10-30 | 2017-10-30 | vehicle air conditioner condensation control method and control system |
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| CN107738552A CN107738552A (en) | 2018-02-27 |
| CN107738552B true CN107738552B (en) | 2019-12-17 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002372320A (en) * | 2001-06-15 | 2002-12-26 | Matsushita Electric Ind Co Ltd | Refrigeration equipment |
| JP5108606B2 (en) * | 2008-04-23 | 2012-12-26 | カルソニックカンセイ株式会社 | Air conditioning system |
| US20120279243A1 (en) * | 2010-01-12 | 2012-11-08 | Honda Motor Co., Ltd. | Air conditioning system for vehicle |
| KR101416357B1 (en) * | 2012-09-07 | 2014-07-08 | 현대자동차 주식회사 | Heat pump system for vehicle |
| WO2015111913A1 (en) * | 2014-01-22 | 2015-07-30 | 한라비스테온공조 주식회사 | Automotive air conditioning system |
| CN105927353A (en) * | 2016-04-27 | 2016-09-07 | 安徽江淮汽车股份有限公司 | Dual cycle cooling system including dual expansion kettles |
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